Best Polyester Tennis Strings in 2026

Polyester strings took over competitive tennis for a reason. They hold up to hard hitting, give players the control to swing bigger, and unlock spin in a way that older string materials never could. The tradeoff is choice. There are dozens of co-polys on the shelf, and picking the wrong one can leave your arm sore or your shots sailing long. Here are the strings worth knowing about right now, and what each one actually does well.

If comfort is what you need most, our guide to the best strings for tennis elbow is a great place to look instead of jumping straight into polyester.

Babolat RPM Blast

For Controlled Spin

Babolat RPM Blast

RPM Blast uses a gear-shaped construction, but it is subtle enough that the snapback still feels smooth rather than grabby. Rafael Nadal switched to RPM Blast during the 2009 season, and the results made the case for it on their own. Plenty of Babolat's current stars still string up with it, including Arthur Fils and Alex Eala, and players consistently point to the solid, satisfying impact sound as one of its signatures. Like any polyester, it loses tension over time, but it can still play great even after that drop.

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Luxilon ALU Power

All Around

Luxilon ALU Power

ALU Power reset the string market when Guga Kuerten showed up using it, and it was not long before pros who never touched their gear setup were suddenly tinkering with Luxilon. As one of the first co-polyester strings to achieve widespread adoption, it delivers control for fast, aggressive swings while playing more comfortably than many of the early polys that followed. For a lot of players, ALU Power is still the standard, and it is easy to see why so many ATP and WTA pros keep coming back to it after all these years.

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Luxilon 4G

For Controlled Spin

Luxilon 4G

Luxilon may well have released 4G to answer the tension-loss criticism polyesters tend to get, because it delivers best-in-class tension maintenance for a poly string. Control is the whole theme here. The firmer construction is built to hold up over hours of play, and that stiffness is exactly why it still plays so well even at lower tensions. The smooth, round profile gives a controlled response on big swings, and both flatter ball strikers and big spin players tend to love the locked-in precision it delivers.

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Solinco Hyper-G

Best Spin

Solinco Hyper-G

Tour Bite may have been Solinco's first well-known string, but Hyper-G is the one that built a massive following, on the pro tour, in college tennis, and all the way down to the junior ranks. It is a spin-friendly poly that plays more comfortably than most other polyesters on the market, and Solinco priced it to be accessible, which has only helped it stay popular season after season.

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Solinco Mach 10

For Power

Solinco Mach 10

Mach 10 is Solinco's most playable polyester, built around feel rather than raw control. That is a real departure from the firmer-playing Tour Bite, Confidential, and Hyper-G in the same lineup. Softer polys often struggle to hold tension, but Mach 10 manages that tradeoff well, and it packs more power than most co-polyester strings typically deliver.

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Solinco Confidential Soft

For Power

Solinco Confidential Soft

Confidential Soft brings a kinder, gentler feel than the original version, but it still delivers real control thanks to its five-sided construction. That slightly softer makeup also opens up more power potential than the standard Confidential offers. The electric pink colorway is not shy about announcing itself either. This is a good choice if you want to play with a poly but you are already swinging a stiffer racquet and need something that keeps things comfortable.

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HEAD Hawk Touch

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HEAD Hawk Touch

Hawk Touch is the string of choice for Jannik Sinner and Alexander Zverev. While a lot of the market has shifted toward shaped strings chasing more spin, Hawk Touch sticks with a smooth, round construction built for a predictable response instead. It sits in a nice middle ground between stiff and soft, and its crystal core construction gives it a feel that stays solid and precise shot after shot.

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HEAD Lynx Tour

For Controlled Spin

HEAD Lynx Tour

Lynx Tour puts its six-sided profile to work for players chasing spin and control. The feel is predictable and on the firmer side, though nowhere close to the stiffest strings on the market. It comes in a handful of colors, but the champagne version gives it a refined, throwback look. The six-sided shape is subtle enough that the string still slides against itself easily, which helps keep the response consistent.

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Tecnifibre Razor Spin (Carbon)

Best Spin

Tecnifibre Razor Spin (Carbon)

Tecnifibre picked up early adopters with Razor Soft, and Razor Spin takes that same foundation and points it squarely at spin. The square profile is built for bite on the ball, and Tecnifibre added polyurethane into the mix for a softer feel and response than a typical shaped poly. It is worth stringing on the lower end of the range, since it holds tension well and stays accurate even at low tensions.

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Finding Your String

The strings above cover a wide range of what polyester can do, from Hyper-G's spin-friendly bite to ALU Power's tour-level precision to Confidential Soft's easier feel on the arm. If you are moving to poly for the first time, start with something in the middle of that range, like Hawk Touch, before working toward the firmer, more control-oriented options. Your racquet, swing speed, and string tension all shape how any of these actually feel in your hand, so do not be afraid to experiment until one clicks. For more guidance on narrowing things down, check out our guide to choosing tennis strings.